선택한 단어 수는 입니다.
최소 단어 이상 선택하여야 합니다.
최소 단어 이상 선택하여야 합니다.
선택한 단어 수는 30입니다.
최대 10 단어까지만 선택 가능합니다.
최대 10 단어까지만 선택 가능합니다.
제안 방법
- For the 6061 Al alloy based composites reinforced with 10 vol% SiC whiskers prepared by powder metallurgy, the microstructural changes during the ECAP were examined and the feasibility of ECAP as the subsequent process following powder metallurgy of the discontinuous MMCs was evaluated.
- In this work, therefore, in order to evaluate the feasibility of ECAP as the subsequent process following the powder metallurgy process for fabrication of MMCs, the 6061 Al alloy matrix composites reinforced with SiC whiskers were prepared by powder metallurgy, and the effect of ECAP on microstructure and microhardness of P/M SiCw/6061 Al composites was investigated.
- The P/M SiCw/6061 Al composite was subjected to the conventional hot extmsion followed by ECAR in order to investigate the ECAP effect on the microstructure of the extruded composite. Figure 7 reveals the microstructures of the extnided P/M SiCw/6061 Al composite before/after ECAP.
대상 데이터
- Two kinds of air atomized 6061 Al alloy (Al- 1.01%Mg-1.07%Si-0.35%Cu-0.25%Fe-0.05%Mn- 0.12%Cr (in wt.%)) powders; one has a size above 301um and the other has a size below 30 [um,] were prepared, and then were mixed with SiC whiskers with an average diameter of 0.45 |im and a length of ~5 |im by stirring under a stirring speed of 3000 rpm for 20 min. The obtained powders with 10% in the volume fraction of SiC whiskers were hot-pressed at 773 K under a pressure of 100 MPa.
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